Die for making interlocking bricks



March 17, 1942.

M. BENDER 2,276,456 I DIE FOR INTERLOCKING BRICK 4 Filed April 8, 1940 I 2 Sheets-Sheet 1 INVENTOR. Q

55 M Bender March 17,1942. I R, ENDER 2,276,456

DIE FOR INTERLOCKING BRICK Filed April 8, 1940 2 Sheets-Sheet 2 h INVENTOR'.

\ ,Rgy M Bender AT TORNEM Patented Mar. 17, 1942 are sure 1*- OFFICE 1 Claim.

This invention relates to brick making and more especially to a machine for making interlocking brick.

An object of the invention is to provide an improved machine construction for making interlocking brick.

Another object is to provide in a brick and block repress machine improved reciprocating dies for forming interlocking brick.

More particular objects and advantages will appear and be brought out more fully in the following specification, reference being had to the accompanying drawings, wherein:

Fig. l is an elevation view partly in section of a brick and block repress machine embodying my invention;

Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1;

Fig. 3 is a perspective view of the upper reciprocating die element;

Fig. 4 is a perspective view of one of the lower die elements;

Fig. 5 is a perspective view of a second lower die element;

Fig. 6 is a plane view of a portion of the feeding table showing the brick in the reforming position;

Fig. 7 is a sectional view taken along the line T'5 of Fig. 6; and

Fig. 8 is a perspective view of a typical brick made by the machine; Fig. 9 is a perspective view showing the upper die element heating member.

Referring more particularly to the drawings, I show a machine frame lllhaving a feeding table frame H which supports a brick feeding table 12 having an'aperture therein through which extends a portion of frame ll. Frame II is adapted to form a pair of substantially rectangular apertures I3 which serve as guides for the vertically reciprocable die members I4, 15 and I6. Frame H! has bearings I! for a rotary shaft it on which is mounted a substantially elliptical cam IQ of suitable shape.

A pair of guide members 2!] are suitably secured to frame In and a reciprocable die support 2! is mounted therebetween and provided with a roller 22 which rides on cam l9 and is raised thereby upon rotation of the same on shaft I8. A pair of die members l6 are suitably secured on support 2| and are adapted to be raised and lowered through apertures l3 as support 2] is raised and lowered. Dies l6 are substantially rectangular in shape and each has a vertical longitudinal slot 23 and a pair of transverse vertical slots 24. A plurality of top plates 25 are ad- 'nizing mechanism forming the justably mounted as by screws or otherwise to the top portions of die members l6 so as to permit exact sizing of the molded brick.

Die member l5 comprises a webportion 26 and a plurality of web portions 21 transverse thereto, web portion 26 having a pair of feet 28 each having a'threaded bore 29 for mounting on a stud bolt 30 which is provided with an adjustable lock nut 3i. The heads of bolts 30 rest on frame H0 at the lower position of the die stroke; die member [5 is adapted to interfit with die member [6, web portion 26 being positioned in slot 23 and web portions 21 in slots 24, the base portion 23a of slot 23 being adapted to engage the lower side of web 26 for raising die member l5 during the upstroke for removal of the brick.

Die members I 4 are each suitably secured as by bolts 32 to a reciprocating block 33 which is actuated and synchronized with the movement of die members It and 26 so as to be lowered when the latter are raised and be raised when the latter are lowered by conventional mechanism which is not shown.

A heating element 34 is secured to the lower face of die member M and a die plate 35 is secured to heating element -34. Die member 35 has a longitudinal groove 36 and a pair of transverse grooves 31 adapted to correspond to web portions 26 and 2'! and are formed with sloping wall portions as shown.

The operation of the invention should be clear from the foregoing description. The wet bricks of rectangular shape are fed from table l2 onto plates 25 of die member l6 and the top edges of webs 26 and 27 of die member l5 which are at this moment level with plates 25, cam l9 being in the upper position, At this moment die member [4 will be raised to permit the placing of the brick as described.

Upon the rotation of shaft l8 a half turn cam l9 will be carried to the lower position as seen in Figs. 1 and. 2, and die members 15 and [6 will be dropped, carrying the brick into apertures 13. Die member [5 will be held by bolts 30 on frame I!) while die member l6 drops below it at. a distance equal to the depth of grooves 36 and 31, and die M will be carried down by the synchrointerlocking grooves and beads A and B, respectively, on the brick as shown in Fig. 8.

Upon the further half turn of shaft I8 which raises cam l9, die member l6 will be raised, and

ing a table provided with a walled aperture, an upper die member having a bead forming groove and a pair of lower die members mounted for reciprocation in said aperture, one of said lower die members having a plate portion and a plu- In a brick and block repress as described, havrality of vertical slots, the second of said lower die members having web portions extending substantially across said aperture, adapted for reciprocation in said slots, abutment supporting means for said second lower die member, said first lower die member having means to engage and raise said second die member with said first die member to said table, said first lower die member adapted to be lowered farther than said second lower die member whereby to form a groove in the bottom and a bead on the top of the brick when the upper die member is lowered.

ROY MORRELLE BENDER. 

